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Default values for function arguments

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Pavel Stehule, with some tweaks by Peter Eisentraut
This commit is contained in:
Peter Eisentraut
2008-12-04 17:51:28 +00:00
parent 7b640b0345
commit 455dffbb73
29 changed files with 2848 additions and 2166 deletions
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20
doc/src/sgml/func.sgml
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@@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.460 2008/11/14 00:51:46 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.461 2008/12/04 17:51:26 petere Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
@@ -11710,6 +11710,10 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
<primary>pg_get_function_arguments</primary>
</indexterm>
<indexterm>
<primary>pg_get_function_identity_arguments</primary>
</indexterm>
<indexterm>
<primary>pg_get_function_result</primary>
</indexterm>
@@ -11799,7 +11803,12 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
<row>
<entry><literal><function>pg_get_function_arguments</function>(<parameter>func_oid</parameter>)</literal></entry>
<entry><type>text</type></entry>
<entry>get argument list for function</entry>
<entry>get argument list of function's definition (with default values)</entry>
</row>
<row>
<entry><literal><function>pg_get_function_identity_arguments</function>(<parameter>func_oid</parameter>)</literal></entry>
<entry><type>text</type></entry>
<entry>get argument list to identify a function (without argument names, default values)</entry>
</row>
<row>
<entry><literal><function>pg_get_function_result</function>(<parameter>func_oid</parameter>)</literal></entry>
@@ -11920,7 +11929,12 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
of a function, in the form it would need to appear in within
<command>CREATE FUNCTION</>.
<function>pg_get_function_result</function> similarly returns the
appropriate <literal>RETURNS</> clause for the function.
appropriate <literal>RETURNS</> clause for the function.
<function>pg_get_function_identity_arguments</function> returns the
argument list necessary to identify a function, in the form it
would need to appear in within <command>ALTER FUNCTION</>, for
instance. This form omits default values and argument names, for
example.
</para>
<para>